What is Vedic Astrology? Jyotish Chart Explained

Vedic Astrology — Jyotish in Sanskrit, literally "the science of light" — is one of the classical Eastern systems of divination, standing alongside BaZi (Four Pillars). It starts from the same place: the positions of the planets at your birth. But it uses the sidereal zodiac rather than the tropical one, and it slices a single chart into as many as nineteen layers, each answering a different area of life.

How it differs from BaZi

• Different coordinate system — BaZi works with the sexagenary cycle; Jyotish works with actual planetary longitudes on the sidereal zodiac. At the same moment, a Vedic chart and a Western chart often place the Sun in different signs — that is the ayanamsa offset.
• Far more divisional charts — BaZi gives you eight characters. Jyotish divides the zodiac by 2, 3, 4, 7, 9, 10, 12, 16, 20, 24, 27, 30, 40, 45 and 60, producing nineteen divisional charts for body, wealth, siblings, property, children, marriage, career, parents, education, stamina and karmic detail.
• Much more sensitive to birth time — and this is the one that matters most. BaZi changes only every two hours (one shichen). In Jyotish the ascendant moves about 1° every four minutes, and charts for marriage, parents or education can flip entirely with a difference of tens of seconds.

Calculation basis

This app uses the internationally standard Lahiri (Chitrapaksha) ayanamsa, whole-sign houses (one sign equals one house), the Mean Node, and Vimshottari Dasha (a 120-year cycle, with a year counted as 365.25 days).

Note that different software may use a different ayanamsa (True Chitra, True Pushya, KP), and the spread can exceed one degree — enough to change a divisional chart entirely. If a chart cast elsewhere does not match ours, that is an ayanamsa difference, not a calculation error. Always confirm both sides use the same ayanamsa before comparing.

Nineteen divisional charts

Divisional charts (vargas) are the most distinctive part of Jyotish. The same planetary positions are re-divided by different rules, giving you a set of magnifying glasses, each focused on one theme:

• D1 — the natal chart: overall structure and life direction
• D2, D11 — wealth: where money comes from and how it grows
• D3, D4, D12 — siblings, property, parents
• D7, D9 — children and marriage, the two most consulted
• D10, D24 — career and education
• D6, D8, D27 — the three health lines
• D16, D20, D30 — vehicles, spirituality, misfortune
• D40, D45, D60 — maternal and paternal lineage, fine karmic detail; these demand an extremely precise birth time

D9 and D60 carry the most weight but are also the easiest to misread. Our reports cite them only when cross-checking other charts, never as a single decisive factor.

Dasha and planetary strength

To answer when something happens, Jyotish uses Vimshottari Dasha: starting from the nakshatra occupied by the Moon, 120 years are allocated among nine planets, then subdivided into major, sub and sub-sub periods. Every time window in our reports is dated to the day.

To judge which planet or house is stronger, we use Shadbala (six-fold strength) and Ashtakavarga (bindu support, per planet and combined). This app implements Shadbala Option A (positional strength plus retrograde/direct ratio), cross-checked against Horosa.

How the report is organized

The Vedic reading comes in five volumes: Overview, Character & Career, Wealth, Marriage & Family, and Health, Learning & Transits. Each volume opens by stating which conclusions you can take at face value and which are only candidates, then gives judgements with time windows, evidence grades and counter-evidence.

Where a technique is not covered by our data (certain special dignities, planetary states, some schools' dasha systems), the report says plainly that it was not analyzed. It never fills the gap with "usually" or "generally".

⚠️ Before you begin: birth time

Vedic astrology is far more sensitive to birth time than BaZi. Before casting a chart, the app computes how many minutes earlier or later your ascendant and key divisional charts would change, then tells you which conclusions can be stated firmly and which must remain candidates.

• If the time comes from hospital records or a birth certificate, the natal chart and marriage chart are broadly usable.
• If it is a parent's recollection of "around midnight", details about marriage, education and children remain candidates only — you will need to check them against your own history.

How to start

Just say in the chat: "Analyze my Vedic astrology chart. I was born on May 15, 1990 at 12:20 PM in Shanghai, male." Give the birth time to the minute where possible, and name the city (used for coordinates and true-solar-time correction).

This page is provided for cultural study and academic research only. It does not constitute life advice or professional consultation.